TWI412435B - Wrench - Google Patents

Abstract

The present invention provides a wrench which includes a main body, a jaw, a handle and a resilient member. The main body has a fixed jaw and a sliding groove. The jaw has a movable jaw. A bottom end of the movable jaw is formed with a sliding portion. The sliding portion is formed with an abutting recess. An interface is defined between a bottom site of the sliding portion away from the movable jaw and an inner surface of a bottom site of the sliding groove of the main body away from the fixed jaw. An extension line of the interface passes through the abutting recess. The handle has a toggle member. When the handle is in the driving space, the toggle member pushes the sliding portion, and the extension line of the interface passes through the toggle member. When the handle is in the releasing position, the movable jaw is able to move away from the fixed jaw. Thereby the wrench of the present invention is able to transfer a driving force to the movable and fixed jaws so that the wrench is easy to drive a work piece to rotate. In addition, the structure of the wrench is so simple that the manufacturing cost would be reduced.

Description

wrench

The invention is primarily concerned with a wrench.

The conventional wrench is provided with a tooth portion under the movable jaw and another tooth portion above the handle, and is driven by the engagement of the two tooth portions to achieve the purpose of the wrench. However, the engagement between the tooth portion and the tooth portion is driven. Under the torque requirement of the wrench, it is easy to cause problems such as chipping and tooth wear after prolonged use.

In this regard, U.S. Patent No. 1,434,754, the entire disclosure of which is incorporated herein by reference in its entirety, the utility of the utility of the utility of the utility of the utility of the utility of the utility of Wherein, the protrusion of the wrench is located below the pocket, and the dialing member is a slot located below the pocket, and the force of the dial to apply force to the movable jaw is mostly concentrated on the bump. However, the dial member extends obliquely outward from the top end of the grip, and the bump extends obliquely toward the slot, and the extension directions thereof are opposite, so that the dial member can only be in point contact manner. Pushing the bump and pushing it up obliquely, so only half of the force is used to horizontally push the bump. In other words, although it does not use the tooth and the tooth, the force is applied. It is difficult to operate because only a small amount of force is transmitted to the active and fixed rafts.

In addition, the wrench uses a two-piece body to fix the movable jaw and the fixed jaw, so that two slots must be opened, and the two fixed pins are respectively inserted into the movable jaw, the fixed jaw and the receptacle, and the wrench is assembled. However, the structure of the wrench is quite complicated, which increases manufacturing costs and assembly difficulty.

The main object of the present invention is to provide a wrench with good operation effect and simple structure.

In order to achieve the above object, the present invention provides a wrench comprising a main body, a flange, a handle and an elastic member.

The main system is integrally formed and integrally extended at one end thereof with a fixed cymbal. The main body defines a sliding slot in a first direction, the first direction being substantially perpendicular to the direction in which the fixed cymbal extends.

One end of the shank integrally extends a movable cymbal portion, and the shank portion forms a sliding portion at a bottom end of the movable cymbal, the sliding portion is recessed with at least one card slot, and the sliding portion is slidably disposed on the sliding slot. The movable raft and the fixed raft define a mouth, and the sliding portion defines an interface away from a bottom side of the movable raft and abutting the main body away from the bottom surface of the bottom side of the fixed raft. The extension passes through the card slot.

The handle is rotatably disposed on the main body, and one end of the handle is provided with at least one dial member, and the dial member extends into the slot, and the handle is rotatable between a driving position and a release position. When the handle is in the driving position, the dial member pushes against the sliding portion to keep the mouth opening at a minimum size, and when the handle is in the release position, the movable jaw can be displaced away from the fixed jaw. Make the size of the mouth bigger.

The elastic member is coupled to the main body and the crotch portion, and provides an elastic force to displace the movable crotch normal direction toward the fixed crucible.

Thereby, the wrench provided by the invention can completely transmit the force applied by the user to the movable jaw and the fixed jaw, so that the invention can easily drive the rotation of the workpiece such as the nut, and the structure of the invention is very simple and helps to control. Cost of production.

The following is a description of the possible embodiments of the present invention, and is not intended to limit the scope of the present invention.

Referring to FIG. 1 to FIG. 3, in the first embodiment of the present invention, the wrench of the present invention comprises a main body 1, a crotch portion 2, an abutting member 3, an elastic member 4 and a grip 5.

The main body 1 is integrally formed and has a fixed raft 11 integrally extended at one end thereof. The main body 1 defines a sliding slot 12 along a first direction v1. The first direction v1 is substantially perpendicular to the direction in which the fixing jaw 11 extends. Further, for other components, the main body 1 is additionally formed with a perforation. 13 and the through slot 14, the sliding slot 12, the through hole 13 and the through slot 14 are connected to each other, and the through hole 13 is located between the sliding slot 12 and the through slot 14. Further, the axial direction of the through hole 13 is perpendicular to the first direction v1. The slot 12 includes a first channel 121 and a second channel 122. The first and second channels 121 and 122 respectively extend through one end of the body 1 and are defined by the extending direction of the slot 12 A sliding axis A that is parallel to the first direction v1. Preferably, the width of the first channel 121 is smaller than the width of the second channel 122.

One end of the shank 2 integrally extends a movable cymbal 21, and the cymbal 2 forms a sliding portion at the bottom end of the movable cymbal 21, and the sliding portion is recessed with at least one slot B. The sliding portion is slidably disposed on the sliding slot 12, and the movable jaw 21 defines a mouthpiece together with the fixing jaw 11. The mouthpiece changes its size when the sliding portion slides, and the mouthpiece can be used to clamp the snail Cap 6, screw or the like, see Figure 3. The sliding direction of the sliding portion is parallel to the first direction v1. An opening of the sliding portion away from a bottom side of the movable raft and an inner surface of the main body away from the bottom surface of the sliding groove of the fixed raft defines an interface, the extension of the interface passes through the card slot B, preferably, the sliding The axis A passes through the card slot B. The first channel 121 is in communication with the port and the second channel 122. The sliding portion includes a first slider 221, a second slider 222 and a third slider 223. The first slider 221 has a first end 221a and a second end 221b. The second slider 222 is disposed at a bottom of the first slider 221 and adjacent to the first end 221a of the first slider 221. The second slider 222 has a first end 222a and a second end 222b. The angle between the sliding axis A and the second end 222b of the second slider 222 is not less than 90 degrees. In this embodiment, the bottom end of the first slider 221 is parallel to the first direction v1. The end surface of the second end 222b of the second slider 222 is perpendicular to the first slider 221, in other words, the angle between the sliding axis A and the end surface of the second end 222b of the second slider 222 is 90 degrees. The third slider 223 is disposed at the bottom of the first slider 221 and adjacent to the second end 221b of the first slider 221 . The angle between the sliding axis A and the end surface of the third slider 223 adjacent to one end of the second slider 222 is not less than 90 degrees. Preferably, the third slider 223 is adjacent to one end of the second slider 222. The end surface is perpendicular to the first slider 221, in other words, the angle between the sliding axis A and the end surface of the third slider 223 adjacent to one end of the second slider 222 is 90 degrees. One portion of the bottom of the first slider 221, the second end 222b of the second slider 222, and the third slider 223 define the card slot B adjacent to one end of the second slider 222. Preferably, the contour of the first slider 221 corresponds to the first channel 121, and the contours of the second and third sliders 222 and 223 respectively correspond to the contour of the second channel 122. The width of a slider 221 is smaller than the width of the second and third sliders 222 and 223, and the second slider 222 is equal to the third slider 223. When the sliding portion is slidably disposed on the sliding slot 12, the first slider 221 is located in the first channel 121, and the second and third sliders 222, 223 are respectively located in the second channel 122. The pocket is formed with a pocket 222c. The pocket is located outside the slot width of the slot B along a second direction v2. The second direction v2 is substantially perpendicular to the first direction. V1, preferably, the pocket 222c is formed in the sliding portion, and more specifically, the pocket 222c is opened in the second slider 222.

The elastic member 4 is disposed on the receiving portion 222c. The first end of the elastic member 4 is connected to the main body 1 through the abutting member 3. The second end of the elastic member 4 abuts against the crotch portion 2. One of the side walls of the pocket 222c. More specifically, the side wall of the shank 2 is extended in the first direction v1 by a convex portion 224. The second end of the elastic member 4 is sleeved on the convex portion 224. The first end of the elastic member 4 abuts against one side of the first end 222a of the second slider 222, the elastic member 4 is disposed on the side of the first end 222a of the second sliding member 222. The second end of the member 4 abuts against the inner wall surface of the pocket 222c adjacent to one side of the second end 222b of the second slider 222. Preferably, the abutting member 3 has a rod shape, and the sliding The moving axis A passes through the axis of the abutting member 3. Further, the pocket 222c extends along the first direction v1 and defines a center line passing through a midpoint of both ends of the recess 222c and passing through the axis of the abutting member, in other words, the center The line overlaps the sliding axis A.

The handle 5 is rotatably disposed on the main body 1. The first side 51 and the second side 52 are respectively disposed on opposite sides of the handle 5, and the width direction of the handle 5 is parallel to the first direction. V1, one end of the handle 5 is provided with a dial 53 extending into the slot B, and the extension of the interface passes through the dial 53 as shown in FIG. The dialing member 53 includes a first pushing surface 531 and a second pushing surface 532 extending obliquely inward from the first side surface 51 of the handle 5. The handle 5 is rotatable between a drive position and a release position. Since the dialing member 53 in the embodiment is a separate protrusion protruding from one end of the handle 5, and a hole 54 is formed at one end of the handle 5, the dialing member 53 directly penetrates into the wearing portion during assembly. The slot 14 further includes a latch 15 extending through the through hole 13 of the main body and the circular hole 54 at one end of the handle, so that the handle 5 can be wound around the latch 15 in a driving position and a release position. In the meantime, since the perforation 13 is perpendicular to the chute 12, the direction in which the pin 15 extends is perpendicular to the first direction v1.

Referring to FIG. 3, when the nut 6 is pulled by the present invention, the handle 5 is first rotated clockwise. When the handle 5 is in the driving position, the first pushing surface 531 of the dial 53 is pushed. The second end 222b of the second slider 222, and the interface extends through the toggle member 53, whereby the mouth is kept at a minimum size, The profiteering 颚2 and the fixed jaw 11 are engaged on the two sides of the nut 6 of a certain size, and the user can continuously hold the handle 5 to apply a force in a clockwise direction to further tighten or loosen the nut 6. Of course, if the card slot B further extends toward the first slider 221, at this time, the first thrust surface 531 may also be pushed to the first slider 221 at the same time.

Referring to FIG. 4, when the handle 5 is rotated counterclockwise to the release position, the first pushing surface 531 of the dialing member 53 is away from the second end 222b of the second slider 222, and the dialing member 53 is The second thrust surface 532 is pushed against one end of the third slider, and the extension of the interface still passes through the dial 53 to displace the movable jaw 21 away from the fixed jaw 11 to change the size of the jaw Therefore, the present invention can be rotated relative to the nut 6 along the nut angle of the nut 6 held in the mouthpiece until the original body is engaged with the other two sides of the nut 6, at this time, the elastic member 4 provides an elastic force to displace the movable jaw 21 in the direction of the fixed jaw 11, so that the movable jaw 21 has a tendency to slide toward the fixed jaw 11 to narrow the jaw, thereby slightly clamping the nut 6 in the jaw .

Referring to FIG. 5, in a second embodiment of the present invention, the first embodiment is different from the first embodiment in that the top ends of the fixed jaws 11 and the movable jaws 21 are obliquely extended to form a flange extension 111, 211, respectively. .

Referring to FIG. 6, in a third embodiment of the present invention, the difference from the first embodiment is that the fixed jaw 11 and the movable jaw 21 are formed with opposite concave curved surfaces, preferably the fixed jaw 11 and the The concave curved surfaces of the movable jaws 21 are each formed with a plurality of convex teeth 112, 212.

Referring to FIG. 7, in a fourth embodiment of the present invention, the difference from the first embodiment is that the sliding portion is recessed with two card slots B, and one end of the handle is provided with two dialing members 53, the two The dial members 53 each extend into the two card slots B.

Summarizing the above embodiment, when the dialing member 53 is pushed against the second slider 222, the interface extends through the dialing member 53, so that the pushing force exerted by the user is transmitted to the first level in a horizontal manner. The two sliders 222 are further transmitted to the abutting member 3, and no component force is generated in other directions, whereby the force applied by the user is completely transmitted to the movable jaw 21 and the fixed jaw 11, thereby improving the operation of the present invention. In particular, when the sliding axis A overlaps the center line of the pocket 222c and passes through the axis of the abutting member 3, the force transmission effect is most concentrated and the operability is optimal.

Similarly, when the dialing member 53 pushes against the third slider 223, the interface extends through the dialing member 53, so that the pushing force can be collectively transmitted to the third slider 223 in a horizontally shifting manner. Thus, the crotch portion 2 can be easily pushed by the dial member 53 away from the fixed jaw 11. In particular, when the sliding axis A also passes through the dial member, the force transmission effect is most concentrated and the operability is optimal.

The end surface of the second end 222b of the second slider 222 is perpendicular to the first slider 221, and the end surface of the third slider 223 adjacent to one end of the second slider 222 is perpendicular to the first slider. 221, the first thrust surface 531 is pushed into the end surface of the second end 222b of the second slider 222 in a surface contact manner, and the second top stack surface 532 is also pushed into the surface contact manner. An end surface of one end of the third slider 223, whereby the force applied by the user can be uniformly transmitted to the second The slider 222 or the third slider 223 can increase the service life of the dial 53.

In addition, the present invention has the feature of compact structure, and only needs to rotate the grip 5 to push the dial member 53 against the second end 222b of the second slider 222 of the sliding portion, thereby clamping the nut 6 or the like. Dismantling or assembling, under the simple structural structure, the invention has the characteristics of easy processing, low production cost, low technical threshold, small gap between parts and high stability, which is favorable for production and better. The operation effect is used, and it is important that the present invention has no engagement or tooth jumping problems during gear separation and engagement, and has a better operational texture, which is beneficial to improve product quality.

1‧‧‧ Subject

11‧‧‧Fixed

111, 211‧‧‧ internal extension

222b‧‧‧second end

222c‧‧‧容容

223‧‧‧third slider

112, 212‧‧ ‧ convex teeth

12‧‧‧Chute

121‧‧‧First channel

122‧‧‧Second channel

13‧‧‧Perforation

14‧‧‧through slot

15‧‧‧Latch

2‧‧‧颚

21‧‧‧ Activities颚

221‧‧‧First slider

221a‧‧‧ first end

221b‧‧‧ second end

222‧‧‧second slider

222a‧‧‧ first end

V2‧‧‧second direction

224‧‧‧ convex

3‧‧‧After the top piece

4‧‧‧Flexible parts

5‧‧‧Handle

51‧‧‧ first side

52‧‧‧ second side

53‧‧‧WD parts

531‧‧‧First push surface

532‧‧‧Second top push

54‧‧‧ round hole

6‧‧‧ Nuts

A‧‧‧ sliding axis

B‧‧‧ card slot

V1‧‧‧ first direction

Figure 1 is an exploded view of a first embodiment of the present invention.

Figure 2 is a perspective view of a first embodiment of the present invention.

3 is a schematic view of a driving nut according to a first embodiment of the present invention.

Figure 4 is a schematic illustration of the displacement of the movable jaw away from the fixed jaw in accordance with the first embodiment of the present invention.

Figure 5 is a cross-sectional view showing a second embodiment of the present invention.

Figure 6 is a cross-sectional view showing a third embodiment of the present invention.

Figure 7 is a cross-sectional view showing a fourth embodiment of the present invention.

1‧‧‧ Subject

11‧‧‧Fixed

12‧‧‧Chute

121‧‧‧First channel

122‧‧‧Second channel

13‧‧‧Perforation

14‧‧‧through slot

15‧‧‧Latch

2‧‧‧颚

21‧‧‧ Activities颚

221‧‧‧First slider

221a‧‧‧ first end

221b‧‧‧ second end

222‧‧‧second slider

222a‧‧‧ first end

222b‧‧‧second end

222c‧‧‧容容

223‧‧‧third slider

224‧‧‧ convex

3‧‧‧After the top piece

4‧‧‧Flexible parts

5‧‧‧Handle

51‧‧‧ first side

52‧‧‧ second side

53‧‧‧WD parts

531‧‧‧First push surface

532‧‧‧Second top push

54‧‧‧ round hole

Claims (8)

A wrench comprising: a main body integrally formed with a fixed yoke extending at one end thereof, the main body opening a sliding slot in a first direction, the first direction being substantially perpendicular to a direction in which the fixed cymbal extends; a sliding portion is formed at one end of the movable portion, and a sliding portion is formed at a bottom end of the movable portion. The sliding portion is recessed with at least one slot, and the sliding portion is slidably disposed in the sliding slot. The movable raft and the fixed raft define a mouth, and the sliding portion defines an interface away from a bottom side of the movable raft and abutting the main body away from the bottom surface of the bottom side of the fixed raft. The extension is passed through the card slot; a handle is rotatably disposed on the main body, and one end of the handle is provided with at least one dial member, and the dial member extends into the card slot, and the handle can be in a driving position Rotating with a release position, the dial member is pushed against the sliding portion when the handle is in the driving position, so that the mouthpiece is kept at a minimum size, and the movable jaw can be oriented when the handle is in the release position Move away from the direction of the fixed jaw, so that The port is enlarged in size; and an elastic member is coupled to the body and the crotch portion to provide an elastic force to displace the movable crotch normal direction toward the fixed crucible; the chute includes a first channel and a second slot a first channel is connected between the port and the second channel, the sliding portion includes a first slider and a second slider, the first slider has a first end and a first The second end of the first slider is disposed at a bottom of the first slider and adjacent to the first end of the first slider, the second slider has a first end and a second end, and the sliding portion is slid In the sliding slot, the first slider is located in the first slot, and the second slider is located in the second slot The sliding portion includes a third slider disposed at a bottom of the first slider adjacent to the second end of the first slider, and the toggle is located when the handle is in the release position The piece is pushed against one end of the third slider to displace the movable jaw in a direction away from the fixed jaw. The wrench of claim 1 , wherein the crotch portion defines a pocket, the pocket being located outside a range of a slot width of the slot along a second direction, the second direction being substantially perpendicular to In the first direction, the elastic member is disposed in the receiving groove, and the first end of the elastic member is connected to the main body through an abutting member, and the second end of the elastic member abuts against the crotch portion in the receiving groove One of the side walls. The wrench of claim 2, wherein the pocket is formed in the sliding portion. The wrench of claim 2, wherein the side wall of the crotch portion extends inwardly in the first direction with a convex portion, and the second end of the elastic member is sleeved on the convex portion. The wrench of claim 1, wherein the extending direction of the chute defines a sliding axis, and the sliding axis passes through the card slot. The wrench of claim 5, wherein the first end of the elastic member is coupled to the main body through an abutting member, the abutting member having a rod shape, and the sliding axis passes through the axis of the abutting member. The wrench of claim 6, wherein the crotch portion defines a pocket, and the pocket is located in a second direction of the width of the slot of the slot. The second direction is substantially perpendicular to the first direction, the elastic member is disposed in the receiving slot, and the first end of the elastic member is connected to the main body through the abutting member, and the elastic member is The two ends abut against a sidewall of the pocket in the receiving slot, the pocket extending along the first direction and defining a center line, the center line passing through a midpoint of the extending ends of the pocket and the abutting The axis of the piece such that the centerline overlaps the sliding axis. The wrench of claim 1, wherein the extension of the interface passes through the dial.